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Questions tagged [mpeg4]

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Structure of MPEG-4 "©xyz" box

[This was originally posted at https://stackoverflow.com/questions/77971906/structure-of-mpeg-4-xyz-box, and I was redirected to here. I understand if it is too OT and is closed.]. I am trying to ...
BradHards's user avatar
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receive mpeg4 stream using gstreamer

I want to receive an mpeg4 stream with gstreamer, the stream information is(using ffprobe shows the following): Input #0, mpeg, from 'udp://[email protected]:8001': Duration: N/A, start: 19215....
Muhammad Mirab Br.'s user avatar
2 votes
0 answers
357 views

What actually distinguishes various MPEG-4 Part 2 video codecs (divx, xvid, mpeg4, msmpeg4v1, mp4v, etc.)

I recently audited a large folder containing a variety of encoded videos from 2002-2014. Using ffmpeg, I extracted and recorded metadata, including the video codec used on the film. An example command ...
aaron's user avatar
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2 votes
1 answer
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Reverting Loss from .MOV (MPEG-4 Compression)

I was wondering if it is possible to revert the loss that was caused by MPEG-4 compression. I had HD quality images and our colleague made the grave mistake of converting these HD images into a "....
Jaegermeister's user avatar
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1 answer
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A video of 1h27m duration, only plays up to 27m

Background I have recovered some large videos as explained here: https://superuser.com/q/1686118/571029 There are 3 videos of almost the same size with the same content, apparently: > ls recoverit-...
Megidd's user avatar
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1 answer
2k views

What happens if you uncheck key frame distance in Premiere Pro CS6

The default is 72 which is in frames I suppose. However what happens if I simply uncheck it? Does it work like AVC Intra where key frames doesnt exist and every pixel in every frame is processed like ...
Delta Oscar Uniform's user avatar
1 vote
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51 views

How can I change slice_type which is show in Elecard stream analyzer using ffmpeg?

I'm not ffmpeg and encodding expert and am trying to encode a MP4 file to MPEG-4 h264. When Elecard stream analyzer is analyzing my result .ts file, it shows slice_type = 7 for all of i-frames as you ...
Tooraj Jam's user avatar
1 vote
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179 views

MPEG-4 Mediainfo, what's "Format Profile"?

I'm wondering what the Format Profile tag/field refers to. (Backstory: I have a couple MPEG-4 videos (I made) on a NAS which won't stream through my X-box 360 (but will stream on any other computer, ...
WPNoviceCoder's user avatar
3 votes
1 answer
2k views

Video metadata: What is "Video delay" used for?

Recently, I'm forced to fiddle with a nasty little problem with videos that have some special metadata attributes, namely "delay" or "delay_relative_to_video". There's a software videoconferencing ...
Gergely Lukacsy's user avatar
3 votes
1 answer
373 views

Video codec for progressive enhancement

JPEG has a progressive enhancement mode where a full frame can be downloaded quickly at low quality, and then the quality enhanced as the file is continually loaded. (Example image from http://...
Brad's user avatar
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To MP4V, or to DX50, or not to be

Should i compress my final outputs down to FOURCC of DX50 or MP4V? Tis the question. I'm having a hard time deciding on this, since im not really sure what to expect in future technology development....
Brian Thomas's user avatar
3 votes
1 answer
54 views

Many boxes/atoms never used?

I'm studying mpeg4 file format according to ISO/IEC 14496 Part 10.But I'm confused that there are many boxes (at least 40) NEVER (in my personal conclusion) be really used,e.g.MPEG-2 transport hint ...
aicco's user avatar
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2 votes
3 answers
3k views

how to convert mp4 to divx?

I have the following DVD player - http://www.lg.com/ae/video/lg-DP542 - and I want to convert my mp4 files into DivX as that is what my player supports. I tried VLC's converter and Handshake but had ...
lsc's user avatar
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